#VU112239 Improper locking in Linux kernel - CVE-2025-38166

Vulnerability identifier: #VU112239

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-38166

CWE-ID: CWE-667

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper locking within the net/tls/tls_sw.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/2e36a81d388ec9c3f78b6223f7eda2088cd40adb
https://git.kernel.org/stable/c/328cac3f9f8ae394748485e769a527518a9137c8
https://git.kernel.org/stable/c/54a3ecaeeeae8176da8badbd7d72af1017032c39
https://git.kernel.org/stable/c/57fbbe29e86042bbaa31c1a30d2afa16c427e3f7
https://git.kernel.org/stable/c/603943f022a7fe5cc83ca7005faf34798fb7853f

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?